Need help in using power function in Bash Post: 302178638

9 More Discussions You Might Find Interesting

1. Programming

power function in C

Hi, I wrote a small program to find 2 to the power of 3, when I tried to execute the following error occured. How can I solve this problem? $ cat t1.c #include <math.h> #include<stdio.h> main() { int a=2; int b=3; int c; c = a ^ b; /* if i use ** instead of ^ also the same problem...

2. Shell Programming and Scripting

Need assistance with bash function

Hi all! I need a little help with an imbedded fuction I am trying to write. What I am trying to do is go to a series of hosts and get the contents of an XML file, storing some of the data, along with the name of the host it was gathered from. My intent is to store this in an array for later...

3. Shell Programming and Scripting

bash search function

I want to have a function with a similar interface: search *.cpp asdf that will search recursively all directories for *.cpp file, containing line 'asdf' inside. I tried this: function search { find . -name "$1" | xargs grep -li $2; } But it doesn't work all the time. For example, if i run it...

4. Shell Programming and Scripting

BASH function error

Hey everyone. I am currently testing my first function based BASH script. The ultimate goal is going to be moving logs from point A to point B (or if B is down, to point C). Part of this involves the following function: function testAlive{ ping -c 1 -q $1 } Now when I run ping -c...

5. Shell Programming and Scripting

Bash function

startvm() { startguest } Is there a way use one line to get this ? actually I want startvm=startguest

6. UNIX for Dummies Questions & Answers

Bash INKEY$ function...

This is probably common knowledge to the professionals but not so much for amateurs like myself. This is a code snippet for the equivalent of BASIC's... LET char$=INKEY$ As the timeout parameter cannot be less than 1 second then this is the only limitation... It is a single line...

7. Shell Programming and Scripting

Yes or No selection within bash function

I need to add a selection within the bash function below and am having some trouble doing so. phox2b() { printf "\n\n" printf "What is the id of the patient getting Phox2B analysis : "; read id printf "Is this an intronic variant? Y/N "; read match_choice case...

8. Shell Programming and Scripting

Bash function, for BSD

I am putting this thread to shell-threads, because it is about how to make a function work properly. I need a hint for declaring a function right, it has been more than a year I did not work that straight with bash. So my aim is to turn off the eth0 (as it would be in linux, and bge0 in bsd ),...

9. Shell Programming and Scripting

Bash function problem

I am trying to figure out why I am having a "problem" with some functions in a bash script I am running. The reason for air quoting is that the functions are working, they are just not displaying anything to screen when called from another function. Here's an example: function Create_Input {...

LEARN ABOUT CENTOS

get_camera_matrix

get_camera_matrix(3alleg4)					  Allegro manual					get_camera_matrix(3alleg4)

NAME

       get_camera_matrix - Constructs a camera matrix for perspective projection. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       void get_camera_matrix(MATRIX *m, fixed x, y, z, xfront, yfront, zfront, fixed xup, yup, zup, fov, aspect);

DESCRIPTION

       Constructs  a  camera matrix for translating world-space objects into a normalised view space, ready for the perspective projection. The x,
       y, and z parameters specify the camera position, xfront, yfront, and zfront are the 'in front' vector specifying which way  the	camera	is
       facing (this can be any length: normalisation is not required), and xup, yup, and zup are the 'up' direction vector.

       The fov parameter specifies the field of view (ie. width of the camera focus) in binary, 256 degrees to the circle format. For typical pro-
       jections, a field of view in the region 32-48 will work well. 64 (90(de) applies no extra scaling - so something which is  one	unit  away
       from the viewer will be directly scaled to the viewport. A bigger FOV moves you closer to the viewing plane, so more objects will appear. A
       smaller FOV moves you away from the viewing plane, which means you see a smaller part of the world.

       Finally, the aspect ratio is used to scale the Y dimensions of the image relative to the X axis, so you can use it to  adjust  the  propor-
       tions  of  the output image (set it to 1 for no scaling - but keep in mind that the projection also performs scaling according to the view-
       port size).  Typically, you will pass (float)w/(float)h, where w and h are the parameters you passed to set_projection_viewport.

       Note that versions prior to 4.1.0 multiplied this aspect ratio by 4/3.

SEE ALSO

       apply_matrix(3alleg4), get_align_matrix(3alleg4), set_projection_viewport(3alleg4), persp_project(3alleg4)

Allegro 							   version 4.4.2					get_camera_matrix(3alleg4)